Django 学习笔记

15 Apr 2014

April 15, 2014

Writing your first Django app, part 1, Template

1. Django follows MVC architecture pattern
2. Install
3. Hello, World
   • create project

      django-admin.py startproject mysite
   

   • project structure

     ➜  python  tree mysite
     mysite
     ├── manage.py
     └── mysite
         ├── __init__.py
         ├── settings.py
         ├── urls.py
         └── wsgi.py
     

   • Run

4. settings.py
   • DB
   • debug
   • Applications
5. Project v.s. Apps
6. Create App

    $ python manage.py startapp polls
   

April 16, 2014

Writing your first Django app, part 2, Model

1. start server python manage.py runserver
2. admin site http://127.0.0.1/admin
3. Make the poll app modifiable in the admin
4. Customize the admin form
   • reorder fields
   • add field title
   • add html classes
   • add related objects, StackedInline, TabularInline
5. Customize the admin change list
   • list_display
   • admin_order_field
   • short_description
   • list_filter
   • search_fields
   • change list pagination
6. Customize the admin look and feel
   • Customize your project’s templates
   • django template file
   • customize the admin index page

April 16, 2014

Writing your first Django app, part 3, View

1. Django views are web pages. URL pattern, urlconfs: map url patterns to views.
2. Write your first view url() arguments, regex, view, kwargs, name
3. write views that actually do something
   • return HttpResponse
   • Raise exception such as Http404
   • Django db API
   • Template System
   • loader
   • render
   • removing hardcoded urls in template by using {% %}
4. Namespacing URL names

April 16, 2014

Writing your first Django app, part 4, Form

1. Write a simple form
2. Use generic views: Less code is better

April 16, 2014

Writing your first Django app, part 5, Testing

1. automated testing
2. basic testing strategy
3. first test
4. test a view

April 16, 2014

Writing your first Django app, part 6, static files

1. Customize your app’s look and feel
2. Adding a background-image

April 22, 2014

Advanced tutorial: How to write reusable apps

1. package django apps to a tar file
2. virtualenv
3. python package index PyPI

May 14, 2014

i18n, l10n

Logging

May 15, 2014

Python 包管理

大部分现代语言都需要有包管理的机制， 使得开发的组件可以重用。

Java使用jar 打包组件， 使用maven来管理组件和组件之间的依赖。

Python 使用pip来安装和管理本地的组件。 其他工具有easy_install, distribute

pip 从PyPI （Python Package Index） 线上网站查找需要的包，如同maven 从mvncentral 查找jar包。

Python 使用Eggs, 如同Java 使用jar

WSGI

Web Server Gateway interface

Werkzeug

Werkzeug is a WSGI utility for Python

Q

1. Run server by python manage.py runserver. How to start it as background service?